don't get too discouraged yet.
search your craigslist every day, multiple times a day, even.
i regularly find co2 tanks of all sizes for 20 dollars. kegs for around 20 dollars. fridges for free, then all you need to purchase are the fittings and get the co2 tank tested and filled. small steps at a time. i started by finding a good deal on a co2 tank and regulator. then i found two kegs for 20 a piece, bought the cheapest fittings i could. now i'm up to 35 kegs, 7 co2 tank, beergas tank, oxygen tank, two chest freezers, and a six keg kegerator. these purchases were all gradual, and i was very patient and waited on craigslist. just wait for the good deals, and you'll be able to find equipment that you need in no time (hopefully).